The Public Trust Office Building is an office building in central Wellington, New Zealand, completed in 1908. It is the only (surviving) building "made of a true New Zealand granite – from Tonga Bay in north-west Nelson."[2] It is also believed to be New Zealand's first steel-framed office building.[3]

Doubts about the building's future were (again) raised following the 2013 Seddon earthquake.[1] Most of the building's tenants were evacuated following the earthquake.[3]Creative New Zealand's Wellington office had been in the building since 1985. After the building's body corporate (Creative New Zealand; Stout Street Chambers; Julian Parsons and Reedy Holdings) commissioned an assessment by engineering firm Dunning Thornton, they decided to sell the building to a party better placed to strengthen the building.[5][6]

After it was largely evacuated, the building was bought by Maurice Clark, who was labelled a "hero" for taking on one of Wellington's largest heritage strengthening projects.[7]

From 2014 to 2015, the building was renovated and earthquake strengthened. The restoration work was undertaken by Maurice Clark's construction firm McKee Fehl with architects Warren & Mahoney. The two companies also collaborated on the restoration of Defence House across the road on Stout Street.[8]

Following the strengthening of the building and its opening on 27 October 2015, the Ministry for Culture and Heritage has occupied most of the building.[4] A Jamie Oliver restaurant was also planned for the large downstairs room, but is now not proceeding and alternative uses are being sought.[8]

The building is listed by Heritage New Zealand as a Category 1 historic building. When the building was first listed by Heritage New Zealand, the citation said that:

“

This building is a superb example of a public and commercial building of the Edwardian period. Its corner site and powerful blend of architectural styles combine to create an outstanding piece of townscape. Chief Government Architect, John Campbell, was responsible for the design of this building which was erected in 1908. Historically the building's importance lies with its use as the Public Trust Office which when established in 1872 was the first of its type in the world.[9]

”

The Wellington Architecture Centre describes the building as:

“

possibly the most architecturally elaborate façade in the capital – if not the entire country, and is without doubt in my mind, Government Architect John Campbell’s finest work outside of his design for Parliament House. It is, literally, our nation’s crowning glory.[1]

”

In 2013, Wellington City Council Councillor Andy Foster said the Public Trust building was one of the heritage buildings he would most like to see strengthened and saved.[10]